sudo ifconfig en0 ether [MAC address]
Now results in
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
sudo ifconfig en0 ether [MAC address]
Now results in
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
Same here, I am on macOS 12 Monterey Beta 5 build 21A5304g.
macOS 12 Monterey public Beta 10, still same issue ;(
This works in Monterey final release.
brew install macchanger
And then (with your network disconnected):
macchanger -m xx:xx:xx:xx:xx:xx en0
Replacing the xx
with your required MAC address and en0
with the appropriate network device.
Not work for me
It works for me only for en0
, but when I try on en7
, it doesn't work.
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
No available formula with the name "macchanger"
It's ridiculous. I'm a network engineer and mac spoofing it's one of the basics things at my work. How am I supposed to work now?
This message board is for Developers/Engineers, not complainers.
You can't change the lladdr (ether/macaddr) while the interface is associated with an SSID.
First, disassociate from any network:
sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -z
Then change your lladdr:
sudo ifconfig <intf> lladdr 00:bb:cc:dd:ee:ff
Then rejoin the WLAN normally.
Thanks its working
good job 👍
After struggling with the ether
command, lladdr
worked, thank you!
Thanks Squeeby! It worked perfectly.
2021 MacBook Pro running Monterey 12.3.1.
Please what password do y’all keep input? I can’t seem to type anything after it requests for password
Hi Squeeby,
Still not working...
I first command: sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -z
Add password, and then:
sudo ifconfig lladdr XXXXXXXX ( X = MAC address) ifconfig: ioctl (SIOCAIFADDR): Invalid argument
sudo ifconfig en0 ether XXXXXXXX ( X = MAC address) ifconfig: ioctl (SIOCAIFADDR): Invalid argument
sudo ifconfig en0 ether/macaddr XXXXXXXX ( X = MAC address) ifconfig: ether/macaddr: bad value
Can you help change MAC address on macOS Monterey?
you should key the cmd as sudo ifconfig en0 lladdr e0:eb:ee:ea:6c:93
, intf
is en0, en1 ......
It works on 12.6.3. In my case it worked after disabling the firewall and/or rebooting.
Hi Squeeby,
I first disconnected from the network.
Then I ran: sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -z
After this I added password and ran: sudo ifconfig en0 lladdr 00:bb:cc:dd:ee:ff
I restarted my computer and then rejoined the network.
The MAC address did not change from what it was previously.
Can you help me change my MAC address?
Do not restart the computer, or the mac addr will reset back
Hi please help
after command sudo /System/Library … after click on password sudo ifconfig en0 lladdrr (MAC address) and it shows invalid argument
Hi folks,
I'm trying to change the MAC address of a VLAN (on en0) but cannot achieve it yet.
Like: sudo ifconfig vlan2 lladdr <new_mac-address>
Did anyone know in what order I should execute the commands?
take it easy guys
1. Install brew (http://brew.sh/)
2. brew update
3. brew install acrogenesis/macchanger/macchanger
Usage: macchanger [options] device
-m, --mac MAC Set the MAC address, macchanger -m XX:XX:XX:XX:XX:XX en0
-r, --random Set random MAC address, macchanger -r en0
-s, --show Show the MAC address, macchanger -s en0
I just found this and it worked on my 2023 MacBook Pro M2 Pro running Ventura 13.4.1:
From: Github link
Change MAC Address in macOS Monterey
I was unable to change the MAC address of the Wi-FI device on a MacBook Air (M1 2020) running macOS Monterey due to the following error: ifconfig: ioctl (SIOCAIFADDR): Can't assign requested addres.
By running these commands in following sequence I was able to change it successfully:
networksetup -setairportpower en0 on
ifconfig en0 ether <new mac-address-here>
networksetup -detectnewhardware
The changed MAC address is not reflected anywhere in the GUI, but if you do an ifconfig en0 from Terminal it shows there. And of course it will reset back to the hardware MAC address when rebooted.
I came across this tonight. This is how you spoof your mac address
Paste this
Paste in
https://formulae.brew.sh/formula/spoof-mac#default
Once installed, this is the output while installing - Good Luck!
~ % brew install spoof-mac
==> Downloading https://formulae.brew.sh/api/formula.jws.json
==> Downloading https://formulae.brew.sh/api/cask.jws.json
==> Fetching dependencies for spoof-mac: openssl@3 and python@3.11
==> Fetching openssl@3
==> Downloading https://ghcr.io/v2/homebrew/core/openssl/3/manifests/3.1.1_1
######################################################################### 100.0%
==> Downloading https://ghcr.io/v2/homebrew/core/openssl/3/blobs/sha256:c4366444
######################################################################### 100.0%
==> Fetching python@3.11
==> Downloading https://ghcr.io/v2/homebrew/core/python/3.11/manifests/3.11.4_1
######################################################################### 100.0%
==> Downloading https://ghcr.io/v2/homebrew/core/python/3.11/blobs/sha256:014abd
######################################################################### 100.0%
==> Fetching spoof-mac
==> Downloading https://ghcr.io/v2/homebrew/core/spoof-mac/manifests/2.1.1_4-1
######################################################################### 100.0%
==> Downloading https://ghcr.io/v2/homebrew/core/spoof-mac/blobs/sha256:35b87b12
######################################################################### 100.0%
==> Installing dependencies for spoof-mac: openssl@3 and python@3.11
==> Installing spoof-mac dependency: openssl@3
==> Pouring openssl@3--3.1.1_1.arm64_ventura.bottle.tar.gz
🍺 /opt/homebrew/Cellar/openssl@3/3.1.1_1: 6,495 files, 28.4MB
==> Installing spoof-mac dependency: python@3.11
==> Pouring python@3.11--3.11.4_1.arm64_ventura.bottle.tar.gz
==> /opt/homebrew/Cellar/python@3.11/3.11.4_1/bin/python3.11 -m ensurepip
==> /opt/homebrew/Cellar/python@3.11/3.11.4_1/bin/python3.11 -m pip install -v -
🍺 /opt/homebrew/Cellar/python@3.11/3.11.4_1: 3,288 files, 62.0MB
==> Installing spoof-mac
==> Pouring spoof-mac--2.1.1_4.arm64_ventura.bottle.1.tar.gz
==> Caveats
Although spoof-mac can run without root, you must be root to change the MAC.
The launchdaemon is set to randomize en0.
You can find the interfaces available by running:
"spoof-mac list"
If you wish to change interface randomized at startup change the plist line:
<string>en0</string>
to e.g.:
<string>en1</string>
To start spoof-mac now and restart at startup:
sudo brew services start spoof-mac
Or, if you don't want/need a background service you can just run:
/opt/homebrew/opt/spoof-mac/bin/spoof-mac randomize en0
==> Summary
🍺 /opt/homebrew/Cellar/spoof-mac/2.1.1_4: 781 files, 10.4MB
==> Running `brew cleanup spoof-mac`...
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).
==> Caveats
==> spoof-mac
Date July 20 2023
WiFi.. or an ethernet adapter?
WiFi: according to the replies it seems possible if you follow some steps, have not tried it yet
Ethernet adapters:
On my MBP 14" 2023 I can ONLY get the Apple TB Ethernet adapter working with the ifconfig ether command.
Every single other ethernet adapter does not allow me to change the MAC address, but they behave differently - falling into four categories:
Category 4 results in the error message, and so does 3 (sometimes). Category 2 however does accept the command without an error message, but does not actually do anything. According to another user this is even the case for the Aquantia 10GbE chipset in the Mac Mini 2023!
Only category 1, so the Broadcom chipset used by the old TB adapter seems to actually do the right thing.
My guess... Apple has decided to not update their current drivers. Maybe it isn't intentional.. but if it is, I really do not appreciate them not acknowledging it.
I have also noticed that with Big Sur.... It does not work even after disabling system protection (csruilt) I guess apple is removing that feature from Mac OS.
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address